Oskren Heated Socks Battery Pack (2 × 4000mAh)

A pair of rechargeable 4000mAh battery packs made to power our heated socks, one for each sock, so you can head out into the cold without hunting for a power source. Simply plug a pack into each sock's connector and enjoy warmth under the sole of your foot on winter walks, at the match or out in the garden. Supplied as a set of two in a compact box, they also make a handy spare set, so a fresh pair is always charged and ready to go.